Table 1—

Radioimmunoassay series

SeriesAssay mixtureResult represent the sum of
ASample + phosphate buffer + insulin tracerBackground, human insulin–specific and cross-reacting antibodies
BSample + cold insulin + insulin tracerBackground
CSample + cold IAsp + insulin tracerBackground and human insulin–specific antibodies
DSample + cold IAsp + IAsp tracerBackground
ESample + cold insulin + IAsp tracerBackground and IAsp antibodies